Dr. Mario is a 1990 puzzle video game developed and published by Nintendo for the Nintendo Entertainment System, Famicom, and Game Boy. It was produced by Gunpei Yokoi and designed by Takahiro Harada. The soundtrack was composed by Hirokazu Tanaka.

Gunpei Yokoi , sometimes transliterated as Gumpei Yokoi, was a Japanese toy maker and video game designer. As a long-time Nintendo employee, he was best known as creator of the Game & Watch handheld system, inventor of the cross-shaped Control Pad, the original designer of the Game Boy, and producer of a few long-running and critically acclaimed video game franchises such as Metroid and Kid Icarus.